Carbureter.



R. W. KALTENBAGH.

GARBURETBR.

APPLICATION FILLED MAYSl, 1912.

` Patented Sept. 9, 1913.

O lm s l 1 15 O 7 4 2 3 A. y ,Owmfmff 22 21M/NT3 fw w m W l w /lm W .r k l v M WwW/Mvllwmtllttwm u t a# M MMMNL|I| WW 3- w fw/mom 5 U fao F M/ a h a M naz@ 7 JY o w, M .H -Q 4- m Uw 9 Z c.. 0 hlwyl/I 2 1 www d WW?. wm 7 'e it site ROBERT w. KALTENBACH, or CLEVELAND, omo., AssIeNoR or ONE-Herr rxatrnnsacn, or BRQOKLYN,;NEW YORK.`

GARBRETER.

ycounty of Cuyahoga and State of Ohio,

have invented certain new and useful lmprovements'in Carbureters; and I hereby i reters.

declare the following to be a full, clear, and eXact description of the invention, such as will enable others skilled in the art to which it pertains to. make and use the same.

This invention relates to new and useful improvements 'in carbureters. I

One object of this invention is to provide a carbureter having ak very simple method of control and which at'the same time has a far greater range of control than is possible-with anypof the old forms of carbu- Another `object of my invention is to provide a. carbureter which will furnish an eX` Vtremely rich mixture on low motor speeds without danger of loading up or in any way interfering with the flexibility of the motor whereby great efficiency is attained and also a saving is secured inthe consumption of gasolene. Y

Vith these objectsV in view and with the intention of securing other advantages which will hereinafter appear, my invention consists in the features of construction and combination of parts hereinafter described in the specification, pointed out in the claims and illustrated in the accompanying drawings. Y In the accompanying drawings Figure 1 is a top plan of a carbureter embodying my invention. Fig.,2 is an end elevation of the same. Fig. 3 is a section on line 3-3, Fig

2. i Fig. 4 is a section'on line V4-- 4, Fig. 1. Fig. 5 is a section on l1ne'545, Fig. 1.

By referring tothe drawings it will beV seen that my carbureter consistsof a body or shell which comprises a base rportion 2, a cylindricallportion 3 jofless diameter than the base portion which extends vertically from the center of the base portion sothat the base portion extendsbeyond the cylindrical portion at diametricallyropposite sides thereof. I At the upper end of the cylindri-u cal portion is arranged la top portion 4 which is of the same general shape as the base portion and projects beyond the cylindrical portion at diametrically opposite sides in line with the projectingk portions of Specification of Letters Patent. Application filed May 31, 1912. Serial'No. I7/00,58`17-.

Patent-eri sept. 9,1913.

'ro ERNEST f the base. At the center of the top portion i 4 is arranged a cylindrical neck portion 5 andf at the upper end'of the neck portion 5 is formed a fla-nge 6. At one side of the cylindrical portion 3 is arranged a semicylindrical projection or extension A7. At each side of the top ymember 4 where it projects beyond thefcylindrical4 portion 3 and fro'mjthe under surfacev thereof a series of cylindrical members extend downwardly towithina short distance of the projecting portion of the. base.` vThere arethree of these members at each side, the members at one side being indicated by 9, 10 and'14, and at the opposite side by 11, 12 and 13. A horizontally arranged cylindrical eXtenksion is formed integral with each series of the said doivnwardlyy extending members', shown at 15 and 16. The interior of the base portion 2 and the interior ofthe cylindrical portion 3 are in open communication and form a single chamber 17 which constitutes the reservoir chamber. The inte# rior of the top portion A4 is separated fromV the interior of the' cylindrical portion 3 by a wall 18 and the chamber' 20 thus` formed inthe top portionY constitutes the mixing,Y

chamber and this chamber is in open communication with the neck 5 through, an opening 22. The ychambers in the downwardly extending cylindrical members 9, 10, 11.A 12, 13 and 14, indicated by 9, 10, 11', 12', 13', and 14, constitute the carbureting chambers and communicate at their upper ends with rthemiX'ing chamber 20 and at their lower ends with the outer air. A

valve seat 23 isppreferably arranged in the openings from i t-he carbureting chambers provided with aV straight bore c which eX- n tends-through from `end to end thereof.

On the base portion 2 where it'projects at each side beyond the cylindrical portion 3 are mounted'a series" of `nozzles 32, 33,

34, 35, 36 and 37, and each nozzle is arranged to vextend up into one of the carbureting chambers 9, 10, 11', 12, 13 and 14.

A valve is provided for closing each opening from the mixing chamber into the carbureting chamber. There are therefore six n of these valves, shown at 42, 43, 44, 45, 46 and 47. These valves are all of differentweight, the valve 42 being the heaviest and the valve 47 being the lightest valve. The valves 42,43, 44, 45 and 46 are similar in form, the valve proper in each case being diskshaped andhaving a centrally arranged upwardly' extending stem, the stems of the valves being indicated by'42, 43,'44, 45 and 46. These stems extend up into the chambers of the hollownuts 25, 26, 27, 28

. and 29 and fitl snugly therein, but said stems do not extend to the vtops of the chambers so that there is room for the stems to move up when the valves are raised. The valve 47 is also disk-shaped and is provided with a centrally arranged opening 47 and a tubularl valve stem 48 extends downwardly therefrom into the carbureting chamber 14" andthe lower end of the said valve stem 43 incloses the upper end of the nozzle 37. It will therefore be seenthat all of the said i valves are held on their respective .seats `simply by the action of gravity and that` any suction created in the mixing chamber will tend to acton said valves and cause them to rise upv from their seats, the lightest valve being lifted lirst and the other valves being raised in succession as the suci of the nut 30. By screwing the nut 53 up or down on the sleeve 50 thesleeve 50 can be adjusted up or downwithin the bore c in the nut 3 0. Asmall red 54 is arranged in the sleeve 50 and the 'lower portion thereof extends down into the tubular valve stem 48 but does not completely close the passageway in` said valve stem. Gn the said rod 54, a short distance above the valve 47, is rigidly secured a stop-forming member 55. At the upper end of the rod 54 is formed a small head 56 and on said rod between the said head 56 and a shoulder 57 formed in the sleeve 50 is arranged a lcoil spring 5S which acts to holdup the rod 54 so that the said stop-forming member is out of contact with the valve 47. At the top of the sleeve between the ears 51 is pivotally mounted a small lever 59, the lower end of which is adapted to'come in contact with the upper end 'of the rod 54 and'is in the form .of a cam, the arrangement being such that when the lever is vertical the `rod 54 will be in its upper position and when the lever is swung down the cam end thereof will shove down the rod 54 and bring the stop-forming member 55 thereon in contact with the valve 47. f

In the neck portion 5 of the casing is arranged Va throttle valve which is provided with an operating handle 61 in the usual manner.

`In each of the projections 15 and k16 at the sides of the carburet-ing chambers is formed a longitudinal bore shown at 15 and 16', and from the'bore 15 passageways 63, 64 and 65 extend .to the carbureting chambers 9, 10 and 14 respectively and from the bore 16 passageways 66, 67 and 68 vextend into the carbureting chambers 11', 12r and 13 respectively. n the `bore 15 is arranged a tubular valve 69 and in the bore 16 is arranged a tubular valve 70, and in the wall of each ofsaid valves are formed three openings or slots, the openings in the valve'69 being indicated by 69V and the openings in the valve 70 being indicated by 70. These slots are arranged circumferentially of the valve and are of different lengths andare so disposed that each slot will register with one of the passageways leading into a carbureting chamber, and as they are of different lengths when a valve is rotated the longest slot will first come in registration with a passageway, then the next longest and'then the shortest. The valves 69 and 70 are provided with operating arms 72 and 73 respectively.

ln the extension 7 at the side of the cylindrical portion 3 is formed a valve chamber 7 which is in open communication with the reservoir chamber 17. A valve 75 is provided for controlling the inflow of gasol-ene through a feed opening 76, thev said valve being'controlled by a float 77 which is operatively connected with said valve, the whole being arranged in the usual manner and forms no part of my invent-ion. The reservoir has a cleanont valve7S.

The operati-on ofthe carbnreter is as f ollows: The feed opening 7 6 is connected with the gasolene tank andthe flange on the neck of the casing is connected with the supply pipe of the engine. The gasolene .will flow into the Yreservoir chamber Auntil the raising of the float 77 closes the valve. The gasolene from the reservoir will rise 'in the nozzles to a predetermined heightregulated bythe float. The engine is then started and a suction will be created inthe mixing chamber. If there is any difliculty Vin getting the engine started the little lever 59 is turned down which shoves down the/rod 54 bringing the stop-forming member 55 in contact with the valve 47 which prevents the said valve47 from beingl lifted from its seat and therefore no air can enter but the pure gasolene Will be sucked up through the tubular valve stem so Vthat a *veryrichy charge will be obtained. VAfter `admitted the nut 53 is turned so as toshove down the sleeve 50 which ofcoursemoves down the rod 54 and brings the stop-forming member closer to the valve 47, thereby limiting the upward movement of said valveand reducing the quantity of air admitted Novvas the engine begins to run faster'the suction inthe mixing chamber will increase and the next heavier valve, that is thevalve 46, willr be lifted from its seat and so on in turn, With the increase in suction, the valves 45, 44, 43 and 42 Will be lifted until all the valves have been raised. If at any time itis found that the mixture istoo rich the valves 69 and 7 0 can be operated and additional quantitiesof air can be admitted to eachfof the carbureting chambers in succession. Under the action of the suction the gasolene Will be drawn from the nozzle in tiny streams Which Will shoot upwardtoward the mixing chamber and impinge against the valves which Will produce an atomizing effect and air and gasolene Will be thoroughly commingled before being drawn from the engine into the cylinder of the engine. When the suction falls off the heaviest valve Will bek seated first, then the next heaviest valve and so on dovvn to the lightest valve in case the engine is stopped. The provision of the air space and the small outlet at the top of each nut tends to hold their valves on their respective seats and prevents their being liarred or lifted by the movement of the machine and the valves Will therefore only move When acted upon bythe suction created in the mixing chamber.

l/Vhat I claim is,-

1. In a carbureter, Vthe combination of a reservoir for holding the gasolene, a mixing chamber arranged above said reservoir and separated therefrom, a series of carbureting chambers communicating at` their upper ends With said mixing chamber and at their lovver ends with the outside air, nozzles mounted on said reservoir and extendino' u a into said carbureting chambers, the top Wall of said mixing chamber being provided with openings inline with the openings from the mixing chamber into the carbureting chambers, chambered nuts arranged to close said openings in the top Wall of the kmixing Y. chamber, a series of `valves of varying Weights arranged in said mixing chamberv i so as to close the openings between the m1x mg chamber and the carbureting chambers,

each of said valves being provided With' a valve stem Which extends up yinto the chamber in the adjacent nut and means for supplying gasolene to the reservoir.

2. In a carburetor, the combination of a `reservoir for holding the gasolene, a mix-j ing chamber arranged above said reservoir and separated therefrom, a series of carbureting chambers arranged in open communication at their upper end With said mixing chamber and at their lower ends with the outside air, the top Wall of said rmixing chamber being provided with screw-,threaded openings in line with i the openings from the mixing chamber into the carbureting chambers;chambered nuts arranged to close vsaid openings inthe top Wall of the mixing chamber, said nuts being provided With small openings in the Walls thereof, valve seats arranged in the openings froml the mixingvchamber into the carbureting chambers, flat valves of varying Weight arranged to rest on said valve seats, eachof said valves 'being provided With a stem which extends up into the chamber in the adjacent nut and a series of nozzles mounted on said reservoir and extending up into the said carbureting-chambers, the openings in said nozzles being arranged under said valves, the' arrangement being such that the fluid dra-Wn from the said nozzles When said valves are raised Will impinge against the undersurface of said valves.

3. In a carbureter, the combination of a reservoir for-holding the gasolene, a`mixing chamber arranged above said reservoir and separated therefrom, a series of carbureting chambers communicating at their upper ends With said mixing chamber` and at their lower ends with the outside air, nozzles mounted on said reservoir and extending up into said carbureting chambers, a valve casing arranged at the side of said carbureting chambers, passageways extending from said valve casing to the carbureting chambers, a tubular valve arranged in said separated therefrom, a carbureting cham'- ber communicating at its upper end With the bottom of the mixing chamber and at its lovver end With the outside air, a nozzle mounted on said reservoir and extending up into said carbureting chamber, an apertured valve arranged to close the opening from the ymixing chamber into the carbureting chamber arranged above said reservoir and chamber, said valve having a tubular stem extending down therefrom adapted to receive the upper end of the said nozzle, a rod extending down into thesaid tubular stem but not completely closing said stem and provided with a member arranged to be.

separated therefrom, a carbureting chamber i communicating at its upper end with the bottom of the mixing chamberv and at its lower end with the outside air, a nozzle mounted on said reservoir and extending up into said carbureting chamber, a disk valve arranged to close the opening from the mixing chamber into said carbureting chamber, said valve being provided with a central opening, a tubular stem extending down from said valve, said stem being adapted to inclose the upper end of said nozzle, an opening formed in the top of the mixing chamber, a sleeve adjustably mounted in said opening, ya rod extending down through said sleeve and having its upper end resting on top of said sleeve, the lower end of said rod I being arranged to extend into the tubular valve stem and leave a clearance between the said rod and the inner wall of the said stem, a lever secured to said valve stem and adapted to raise and lower said stem and a'member secured on said stem within the mixing chamber and adapted to be brought in contact with the said disk valve when the said rod is lowered so as to hold said disk valve on its seat. V

6. In a carbureter, a hollow base portion, a cylindrical portion extending upwardly from the base portion so that said base portion extends beyond said cylindrical portion at diametrically opposite sides thereof, the interior of thersaid cylindrical portion and the interior of the base forming aA single chamber, a top portion arranged on the cylindrical portion and separated therefrom and projecting at diametrically opposite sides beyond said cylindrical portion, cylindrical members extending downwardly from the top portion where it projects at each side of the cylindrical portion, the interior of said top portion and the interior of said cy-v lindrical members being in open communication, said top portion having openings in the top wall thereof, chamberednuts closingsaid openings, nozzles mounted on the base portion where it extends beyond the cy lindrical portion'a-nd extending up into said cylindrical members depending from the top portion and valves arranged to control communication between the interior of said top portion and said cylindrical members, said valves being provided lwith stems Awhich extend into said chambered nuts.

In testimony whereof, I sign the foregoing speciication, in the presence of two Wit nesses.

ROBERT w. KALTENBACH.

, TWitnesses A VICTOR C. LYNCH, Y N. L. MGDONNELL.

Copies of this patent may be obtained for ve cents` each, by addressing the Commissioner of Patents.

, Washington, D. C. 

